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Finding the Fourth Proportional to 18,453.99, 27,701.01 and 17,127.21

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Solution

The fourth proportional to 18,453.99, 27,701.01 and 17,127.21 is: 25,709.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,453.99 : 27,701.01 = 17,127.21 : x
  2. Step 2: Convert to fraction form
    18,453.99/27,701.01 = 17,127.21/x
  3. Step 3: Cross multiply
    18,453.99x = 27,701.01 × 17,127.21
  4. Step 4: Simplify right side
    18,453.99x = 474,441,015.48
  5. Step 5: Solve for x
    x = 474,441,015.48/18,453.99
  6. Step 6: Final answer
    x = 25,709.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.